RUGBY’S GREATEST RIVALRY: As the two ruling powers of men’s rugby union prepare to meet in two Tests, Harry Latham-Coyle explains the rich history and off-field conflicts that deepen the rivalry Key points and original sources are listed below.

• RUGBY’S GREATEST RIVALRY: As the two ruling powers of men’s rugby union prepare to meet in two Tests, Harry Latham-Coyle explains the rich history and off-field conflicts that deepen the rivalryS1S2